ISS Space walk

euronews.net ISS Space walk Atlantis' astronauts took another spacewalk outside the International Space Station on Saturday

Category:

News & Politics

Tags:

• euronews
• nocomment
• ISS
• Space
• walk
• Atlantis'
• astronauts
• took
• another
• spacewalk
• outside
• the
• International
• Station
• on
• Saturday
• no
• comment
• tv
• watch
• international
• news
• without
• commentary

[TheJay9002]

@liamp1994 thanks bro

[liamp1994]

there isn't zero gravity, its called apparent weightlessness because people are accelerating downwards constantly towards the centre of the earth, but are actually travelling at a tangent to the earths surface. The law of circular motion keeps things in orbit, whilst their weight is acting towards the centre. as a result there resultant force is zero so they appear "weightless". if they stopped orbiting though, they would fall back to earth

[Simo4404]

it would be soo cool to be a astronot

[manwithouthat44]

@ikilledsanta123 thanks

[ikilledsanta123]

@4884qwerty Actually, there IS gravity in space. The force of gravity from Earth is only 10% less on the ISS than it is on Earth's surface. The ISS astronauts don't feel the force of gravity because they experience little to no net acceleration, due to the fact that they are traveling at 7.7km/s parallel to the nearest part of Earth's atmosphere.

[ikilledsanta123]

@manwithouthat44 The ISS is traveling at 7.7km/s, or 17,224 mph. Astronauts are not "torn away" from the ISS because there is practically no air in space. Without any air to slow him down, the astronaut keeps the same velocity as the station. That's why the station is even feasible - to maintain 7.7km/s in Earth's atmosphere would require tremendous and impractical amounts of fuel.

The idea is analogous to the old videos of WW2 planes dropping bombs - the bombs moved forward with the planes.

[ikilledsanta123]

@manwithouthat44 If he purposefully launched himself toward Earth, there is no doubt he could reach the atmosphere. Space suits have 2 gas-powered maneuvering systems, one made to save astronauts who drift away from the space station at high speeds. It can accelerate an astronaut at 3m/s. So, without intent, it is nearly impossible for an astronaut to "get lost in orbit".

A space suit can have a few hours to just minutes of spare oxygen, depending on the day's mission.

[manwithouthat44]

@DtrainBigHammer Why would he suffocate. Dont they have oxygen tanks or something. I mean, how long would you last. Like a minute or hour? And another thing I dont get. If the ISS is speeding at 30.000 mph, when you go EVA, what is it that keeps you close to the station and not being torn away. Just a little wire?

[manwithouthat44]

what would happen if an astronaut would push himself off the satelite ? Would he get lost in the orbit or die or something. I dont know much about space, my english is very bad.

[4884qwerty]

@SergeantPepper8 cept theres no gravity so you wouldnt really feel like you would fall to your death